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1
H
Hydrogen
1.01
2
He
Helium
4.00
3
Li
Lithium
6.94
4
Be
Beryllium
9.01
5
B
Boron
10.81
6
C
Carbon
12.01
7
N
Nitrogen
14.01
8
O
Oxygen
16.00
9
F
Fluorine
19.00
10
Ne
Neon
20.18
11
Na
Sodium
22.99
12
Mg
Magnesium
24.30
13
Al
Aluminum
26.98
14
Si
Silicon
28.09
15
P
Phosphorus
30.97
16
S
Sulfur
32.06
17
Cl
Chlorine
35.45
18
Ar
Argon
39.95
19
K
Potassium
39.10
20
Ca
Calcium
40.08
21
Sc
Scandium
44.96
22
Ti
Titanium
47.87
23
V
Vanadium
50.94
24
Cr
Chromium
52.00
25
Mn
Manganese
54.94
26
Fe
Iron
55.84
27
Co
Cobalt
58.93
28
Ni
Nickel
58.69
29
Cu
Copper
63.55
30
Zn
Zinc
65.38
31
Ga
Gallium
69.72
32
Ge
Germanium
72.63
33
As
Arsenic
74.92
34
Se
Selenium
78.97
35
Br
Bromine
79.90
36
Kr
Krypton
83.80
37
Rb
Rubidium
85.47
38
Sr
Strontium
87.62
39
Y
Yttrium
88.91
40
Zr
Zirconium
91.22
41
Nb
Niobium
92.91
42
Mo
Molybdenum
95.95
43
Tc
Technetium
98.00
44
Ru
Ruthenium
101.07
45
Rh
Rhodium
102.91
46
Pd
Palladium
106.42
47
Ag
Silver
107.87
48
Cd
Cadmium
112.41
49
In
Indium
114.82
50
Sn
Tin
118.71
51
Sb
Antimony
121.76
52
Te
Tellurium
127.60
53
I
Iodine
126.90
54
Xe
Xenon
131.29
55
Cs
Cesium
132.91
56
Ba
Barium
137.33
72
Hf
Hafnium
178.49
73
Ta
Tantalum
180.95
74
W
Tungsten
183.84
75
Re
Rhenium
186.21
76
Os
Osmium
190.23
77
Ir
Iridium
192.22
78
Pt
Platinum
195.08
79
Au
Gold
196.97
80
Hg
Mercury
200.59
81
Tl
Thallium
204.38
82
Pb
Lead
207.20
83
Bi
Bismuth
208.98
84
Po
Polonium
209.00
85
At
Astatine
210.00
86
Rn
Radon
222.00
87
Fr
Francium
223.00
88
Ra
Radium
226.00
104
Rf
Rutherfordium
267.00
105
Db
Dubnium
268.00
106
Sg
Seaborgium
269.00
107
Bh
Bohrium
270.00
108
Hs
Hassium
277.00
109
Mt
Meitnerium
278.00
110
Ds
Darmstadtium
281.00
111
Rg
Roentgenium
282.00
112
Cn
Copernicium
285.00
113
Nh
Nihonium
286.00
114
Fl
Flerovium
289.00
115
Mc
Moscovium
290.00
116
Lv
Livermorium
293.00
117
Ts
Tennessine
294.00
118
Og
Oganesson
294.00
periodicTable.lanthanides
57
La
Lanthanum
138.91
58
Ce
Cerium
140.12
59
Pr
Praseodymium
140.91
60
Nd
Neodymium
144.24
61
Pm
Promethium
145.00
62
Sm
Samarium
150.36
63
Eu
Europium
151.96
64
Gd
Gadolinium
157.25
65
Tb
Terbium
158.93
66
Dy
Dysprosium
162.50
67
Ho
Holmium
164.93
68
Er
Erbium
167.26
69
Tm
Thulium
168.93
70
Yb
Ytterbium
173.05
71
Lu
Lutetium
174.97
periodicTable.actinides
89
Ac
Actinium
227.00
90
Th
Thorium
232.04
91
Pa
Protactinium
231.04
92
U
Uranium
238.03
93
Np
Neptunium
237.00
94
Pu
Plutonium
244.00
95
Am
Americium
243.00
96
Cm
Curium
247.00
97
Bk
Berkelium
247.00
98
Cf
Californium
251.00
99
Es
Einsteinium
252.00
100
Fm
Fermium
257.00
101
Md
Mendelevium
258.00
102
No
Nobelium
259.00
103
Lr
Lawrencium
266.00
Element Categories
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